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Finding the Fourth Proportional to 283,325.72, 391,003.86 and 160,826.72

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Solution

The fourth proportional to 283,325.72, 391,003.86 and 160,826.72 is: 221,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,325.72 : 391,003.86 = 160,826.72 : x
  2. Step 2: Convert to fraction form
    283,325.72/391,003.86 = 160,826.72/x
  3. Step 3: Cross multiply
    283,325.72x = 391,003.86 × 160,826.72
  4. Step 4: Simplify right side
    283,325.72x = 62,883,868,311.14
  5. Step 5: Solve for x
    x = 62,883,868,311.14/283,325.72
  6. Step 6: Final answer
    x = 221,949.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.